PFA-NS: Power-Fading-Aware Noise Shaping Enabled C-Band IMDD System with Low Resolution DAC

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Dec 23, 2025
Xiaobo Zeng, Liangcai Chen, Pan Liu, Ruonan Deng
Figure 1 for PFA-NS: Power-Fading-Aware Noise Shaping Enabled C-Band IMDD System with Low Resolution DAC
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We propose and demonstrate a power-fading-aware noise-shaping technique for C-band IMDD system with low resolution DAC, which shapes and concentrates quantization noise within the fading-induced notch areas, yielding 94% improvement in data-rate over traditional counterpart.

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